2) F*cosα-Fтр=m*a
Fтр=μ*N=μ(m*g-F*sinα)
F=m*(μ*g+a)/(cosα + μ*sinα)=10*(0.3*10+0.5)/(0.87 + 0.3*0.5)≈35 H
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3) m=2000 кг a=0.3 м/с2 v=10 м/с
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F=m*a=2000*0.3=600 H
0=v-a*t
t=v/a=10/0.3≈33 c
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2) F*cosα-Fтр=m*a
Fтр=μ*N=μ(m*g-F*sinα)
F=m*(μ*g+a)/(cosα + μ*sinα)=10*(0.3*10+0.5)/(0.87 + 0.3*0.5)≈35 H
================
3) m=2000 кг a=0.3 м/с2 v=10 м/с
===
F=m*a=2000*0.3=600 H
0=v-a*t
t=v/a=10/0.3≈33 c
================================